On Tue, Dec 22, 2020 at 09:16:34AM +0800, Chao Yu wrote:
> As kitestramuort reported:
>
> F2FS-fs (nvme0n1p4): access invalid blkaddr:1598541474
> [ 25.725898] ------------[ cut here ]------------
> [ 25.725903] WARNING: CPU: 6 PID: 2018 at f2fs_is_valid_blkaddr+0x23a/0x250
> [ 25.725923] Call Trace:
> [ 25.725927] ? f2fs_llseek+0x204/0x620
> [ 25.725929] ? ovl_copy_up_data+0x14f/0x200
> [ 25.725931] ? ovl_copy_up_inode+0x174/0x1e0
> [ 25.725933] ? ovl_copy_up_one+0xa22/0xdf0
> [ 25.725936] ? ovl_copy_up_flags+0xa6/0xf0
> [ 25.725938] ? ovl_aio_cleanup_handler+0xd0/0xd0
> [ 25.725939] ? ovl_maybe_copy_up+0x86/0xa0
> [ 25.725941] ? ovl_open+0x22/0x80
> [ 25.725943] ? do_dentry_open+0x136/0x350
> [ 25.725945] ? path_openat+0xb7e/0xf40
> [ 25.725947] ? __check_sticky+0x40/0x40
> [ 25.725948] ? do_filp_open+0x70/0x100
> [ 25.725950] ? __check_sticky+0x40/0x40
> [ 25.725951] ? __check_sticky+0x40/0x40
> [ 25.725953] ? __x64_sys_openat+0x1db/0x2c0
> [ 25.725955] ? do_syscall_64+0x2d/0x40
> [ 25.725957] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9
>
> llseek() reports invalid block address access, the root cause is if
> file has inline data, f2fs_seek_block() will access inline data regard
> as block address index in inode block, which should be wrong, fix it.
>
> Fixes: 788e96d1d3994 ("f2fs: code cleanup by removing unnecessary check")
> Fixes: 267378d4de69 ("f2fs: introduce f2fs_seek_block to support SEEK_{DATA, HOLE} in llseek")
> Cc: stable <stable@xxxxxxxxxxxxxxx> # 3.16+
> Reported-by: kitestramuort <kitestramuort@xxxxxxxxxxxxx>
> Signed-off-by: Chao Yu <yuchao0@xxxxxxxxxx>
> Signed-off-by: Jaegeuk Kim <jaegeuk@xxxxxxxxxx>
> ---
>
> This will cause boot failure in f2fs image, which was reported in gentoo
> community, I'd like to fix them in stable kernel 5.10 first as request in
> bugzilla:
>
> https://bugzilla.kernel.org/show_bug.cgi?id=210825
<formletter>
This is not the correct way to submit patches for inclusion in the
stable kernel tree. Please read:
https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html
for how to do this properly.
</formletter>
